Hi john, thats exactly what they talking about when they say "fly with the throttle". As anyone who has mastered this would say in the hover your constantly jugling with the correct throttle setting, The first step is finding the sweet spot on the stick where your edge just sits there without loosing or gaining height which it sounds like your at. Next is keeping it here and nows where the work starts, first thing is that you cant let it drop as when it starts to drop the props torque really takes over, and usually you cant stay in control. usually the throttle movements only a few clicks but this keeps the model above the point of wanting to fall off the hover. Really the truth is you dont need hardly ant rudder to hover, when you get good, elevator is much more important as they get quite pitchy. You need the rudder for getting out of crap mostly. try to put small jabs of right rudder in all the time, after a while you will see the planes going off the vertical and you will instinctively put in the rudder, from here all I can say is practice, trust me you dont need any more rudder . If you can get your hands on a good simulator, say realflight G2 it would be a great start
later
Mike

www.rcnz.cjb.net